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What a Musty Smell Means
Musty or earthy odors often come from microbial growth or damp materials. EPA notes that a musty smell can indicate hidden mold even when you cannot see it.
Common Odor Sources
- Carpet or padding that stayed wet
- Basements or crawlspaces with poor ventilation
- Inside closets on exterior walls
- Behind cabinets and under sinks
- HVAC drain pans or ductwork
How to Track It Down
What Not to Do
- Mask the odor with air fresheners
- Paint over damp surfaces
- Ignore recurring condensation
When to Call a Pro
Call for Help If
- Odor persists after drying and cleaning
- You suspect mold in HVAC systems
- Water damage is hidden or extensive
- Occupants have health sensitivities
DIY Steps First
- Dry the area thoroughly
- Clean non-porous surfaces
- Improve airflow and ventilation